======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '179'
                                          'artist'  'Virginia Belmont'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ave Maria'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['non-music', 'classical', 'novelty', 'spoken word', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness;mi-whistling'
                                             'bpm'  '123.0'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-oddness', 'mi-whistling']
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'Ave Maria'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Virginia Belmont'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['non-music', 'classical', 'novelty', 'spoken word', 'pop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+5.44 dB'
'TXXX:replaygain_track_peak'                        '0.275369'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.whistlingrecords.com')

========================== row from database ==========================
                                              'id'  1286217
                                            'path'  /data/Music/Bulk/00spent/Whistling/Virginia Belmont - Ave Maria.mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  179
                                           'genre'  electronic-experimental-oddness;mi-whistling
                                        'filesize'  718848
                                           'mtime'  1620528063
                                   'redo_metaread'  0
                                        'rest_str'   00spent Whistling electronic experimental oddness;mi whistling
                                      'tag_artist'  Virginia Belmont
                                     'tag_release'  None
                                       'tag_title'  Ave Maria
                                             'bpm'  123.0
                                    'search_title'  'ave':1 'maria':2
                                   'search_artist'  'belmont':2 'virginia':1
                                  'search_release'  
                                     'search_rest'  '00spent':1 'electronic':3 'experimental':4 'mi':6,8 'oddness':5,7 'whistling':2
                                    'search_combo'  '00spent':5 'ave':1A 'belmont':4B 'electronic':7 'experimental':8 'maria':2A 'mi':10,12 'oddness':9,11 'virginia':3B 'whistling':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  ['non-music', 'classical', 'novelty', 'spoken word', 'pop']

============================== file details ==============================
                                           'mtime'  1620528063.1746955  (2021-05-09 04:41:03)
                             'size'  718848